Yes, if you have a Windows 32bit Operating System your system only use 3.2GB of your 4GB. But you can always upgrade to 64bit.
If you have bought 3GB you need at least 3 slots (1 x 2GB + 2x 512MB) if you have 4GB you only use 2 slots (2 x 2GB). If you want to upgrade from 3 to 4GB you will
have to buy more then 1GB... |